The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 30, 2025
Filed:
Oct. 14, 2021
National University Corporation Shizuoka University, Shizuoka, JP;
Masato Futagawa, Hamamatsu, JP;
Kisho Sakamoto, Hamamatsu, JP;
Abstract
The soil moisture sensor includes a thermoelectric element disposed in the soil, a first temperature information acquisition unit acquiring a first temperature information that indicates a temporal change in temperature of the soil due to an operation of the thermoelectric element, a second temperature information acquisition unit acquiring a second temperature information that indicates a temporal change in temperature of the soil due to the operation of the thermoelectric element, and an arithmetic device obtaining moisture information on the basis of the temperature information. The arithmetic device includes a gradient information acquisition unit acquiring a temperature change amount per unit time by utilizing the first temperature information and the second temperature information, and a conversion unit converting the temperature change amount into the moisture content by utilizing conversion information indicating a relationship between the temperature change amount and the moisture content.